KBS’s new Monday-Tuesday drama “Prime Minister and I” is gearing up for its premiere with the release of two trailers and additional stills.

Lee Bum Soo will be playing the role of South Korea’s youngest prime minister Kwon Yool, who is known for his sharp intelligence, and YoonA will be taking on Nam Da Jung, a clumsy and absentminded reporter. Click here for YoonA’s stills.

The new stills of Lee Bum Soo show him as a charismatic and sharply-dressed prime minister. The first trailer also depict Lee Bum Soo in the same manner, a sharp contrast to bubbly YoonA featured in the second trailer. Both trailers only contain one line of dialogue, with YoonA calling out to Lee Bum Soo, “Prime Minister!” At the end, YoonA narrates, “In December, the Prime Minister of Korea transforms.”

“Prime Minister and I” will air after “Marry Him If You Dare” on December 9.